When the popular girls club takes interest in Mia, she has to decide between being popular and her new cupcake club friends.

Alexis Becker loves to organize and plan and set goals, which is why she is in charge of the business end of the Cupcake Club. But when she suddenly develops a major crush on Matt Taylor - who happens to be Emma's brother - things get a little disorganized.

Although Mia feels fairly satisfied with her life, she worries about who should attend parent-teacher night and her failing grade in Spanish.

"Alexis is the clear leader of the Cupcake Club: She's organized, punctual, and happy to take on the stuff like scheduling, budgets, invoicing, and the things that the other girls don't really want to do. In other words, the "unfun" things. But one day Alexis feels particularly unappreciated and informs the Cupcake Club that she is no longer in charge! After deadlines get missed and supplies aren't bought, the girls realize they definitely need a...

Mia tries to make friends with Olivia, the new girl, but when Olivia makes fun of the other Cupcake Club girls and tells Mia she shouldn't hang out with them, Mia must make a decision about her new friendship.

When Sydney moves away and is replaced by newcomer Olivia, Alexis becomes the focus of hurtful teasing by the Best Friends Club and begins to wonder if an offhand remark she made when first meeting Olivia may have been taken the wrong way.

Worrying about her fashion prospects when she learns that she has to get both braces and glasses, Mia receives help from her stylish mom and is reassured by her Cupcake Club friends that she is still the same old Mia.

Feeling like a third wheel in the Cupcake Club when best friend Emma goes away on a family trip, Alexis bonds with Katie while Mia spends time with a visitor, a situation that helps all the girls to discover the benefits of sharing friendships with multiple people.

Mia hears about someone at school starting a fashion club, and wonders if she can manage being in two clubs at the same time.

Hired with the Cupcake Club to serve a huge order at a neighbor's outdoor party, Alex, knowing that her crush will be in attendance, struggles to find just the right outfit when she discovers that she has reached an in-between size.

"When Mia reads about a Design-a-Dress contest in a magazine for "budding designers ages 12-16" she is excited. But she doesn't realize how much work designing--and sewing--a dress truly is until she starts on her contest entry. While Mia stresses out about all the work she has to do, she and Katie have an argument about, of all things, fashion preferences! Katie offers suggestions that don't really go with the outfit Mia has in mind. And when Mia...

"He loves me, he loves me not ... Alexis leaves a Valentine's Day surprise for her crush. Does he like her back? Despite objections from her Cupcake Club pals, Alexis makes a special valentine cupcake for her crush, Emma's older brother Matt, and leaves it for him next to his computer. Alexis is secretly hoping Matt will get the hint and give her a valentine, too. But ever since Alexis left the cupcake, Matt's been acting really uncomfortable around...

"Mia is having a terrible day! Everything is going wrong. She woke up late and couldn't make her hair look perfect or brush her teeth, she probably failed a pop quiz, and she broke her glasses! But when her mom's cousin Laura arrives from Puerto Rico, she gives Mia a bracelet with a lucky charm. All of a sudden, Mia's luck changes for the better. Mia's thrilled--she'll never have a bad day again--or will she?"--Back cover.

Aspiring to win the science fair with a project that proves that cupcakes are good for you, Alexis finds her ambitions challenged by her crush's association with another girl and a cupcake order for a mean girl's sweet sixteen.

Reaching a compromise with her parents when they say she is too young to attend a concert alone, Mia discovers that she is being cyberbullied on social media and teams up with her fellow Cupcake Club members to discover who is behind the attacks.

When Alexis decides she wants to be more like her popular older sister, Dylan, she tries out for cheerleading, without really thinking about what that entails, including that her sister was a star on her cheerleading squad.

"Things are slow at the cupcake shop this summer, and so when Mia's dad invites her on a long weekend trip to meet some of his college friends, she jumps at the chance--especially when she hears they have daughters her age. It turns out the girls work in an ice cream shop. Not only does Mia end up making new friends--she comes back with a new invention for the Cupcake Girls: an ice-cream cone cupcake!"--